Konchina, T., Sidorskaya, V., Oparina, S., Rostunov, A., Baronova, E., & Zhestkova, E. (2017). THE SEX SYSTEM OF THE POPULATION OF SAGITTARIA SAITTIFOLIA AS AN INDICATOR OF THE ECOLOGICAL STATUS OF A RIVER. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, 1, 150-155. https://doi.org/10.17770/etr2017vol1.2517